<template>
  <Demo />
</template>

<script>
import Demo from "./components/demo.vue"; // ref处理基本类型数据  reactive处理引用类型数据

export default {
  name: "App",
  components: {
    Demo
  },
  setup() {
   
  },
};
</script>

<style>
.app {
  background-color: #ccc;
  padding: 10px;
}
</style>